مسامير عربة 3/8-16 × 6-1/2 بوصة | فولاذ مطلي بالزنك درجة A307 (50/عبوة)

These are holding my deck railing posts rock solid—the zinc coating shines evenly with no rough spots. The square neck under the head locked in tight without any spinning, which made installation a breeze. Exactly what I needed for outdoor framing projects.

I was replacing a rotted deck board and these 6-1/2" bolts gave me just the right bite into the joist below. The zinc plating looks clean and should hold up fine against the elements.

The square neck on these carriage bolts grabbed the wood perfectly on my deck frame, no spinning at all while I tightened the nut. The zinc coating looks clean and uniform across all 50 pieces.